Jean schafhaus



(No Model.)

J. SGHAPHAUS.

SEPARATING TUN OR HOP BACK.

No. 262,622. Patented Aug. 15, 1882.

O E ,F w 5 53 UNITED STATES PATENT OFFICE.

JEAN SOHAFHAUS, OF-NEW YORK,-N. Y.

SEPARATING-TUN 0 HOP-BACK;

SPECIFICATION forming To all whom it may concern:

Be it known that I, JEAN SGHAFHAUS, a citizen of the United States,residing in New York,in the State of New York,have invented a new anduseful Improvement in Separating- Tuns or Hop-Backs, of which thefollowing is a specification.

In the accompanying drawings, Figure I represents a vertical section ofathop-back embodying my improvements. Fig. II is a modification of thesame.

Similar letters represent similar parts.

During the operation of brewing beer, when theboilin g of the wort isfinished the hopped wort is drawn ofi into another tun, called ahop-back, (hop-vessel,) which has a perforated bottom or strainer forthe purpose of retaining the hops, malt, and other substances and todraw off the clear wort or beer. These tuns or hop-backs are generallyopen vessels, and will allow the steam or vapors to escape freely at thetop, and thus fill the room with their escaping steam.

The object of myinvention is to confine and at the same time nearlycondense all the steam, and retain thereby part of the flavor or aromawhich at present escapes with the steam or vapor.

In the accompanying drawings, A is a hopback, into which the wort isdrawn from the brew-kettle through the pipe F, provided with a strainer,E, near the bottom, and an outletpipe, G, through which the cleared andstrained beer is drawn oft. This tun or hop-back A is placed in avessel, B, of sufficient size to allow aspace for water all around saidtun A as well as against the bottom.

Upon the tun A a tank, G, is placed, open at top and resting upon thetop of the tun. The sides of this tankO project some distance below thebottom of said tank and enter into the space between the outside ofthetun Aand the inner sides of the vessel B, as shown at d, and formthus, when the vessel B is filled with water, a water-joint andvapor-tight cover for the tun A. a

To the Inside, upon the bottom of the tank 0, a channel-way, P, isattached, having perforated sides for the escape of water over thisbottom surface, the water being supplied to this channel-way P throughthe pipe N. At

part of Letters Patent lll'o. 262,622, dated August 15, 1882.Application filed April 15, 1882. (No model.)

one or more places of the circumference overflow-pipes m are arranged tocarry the surplus water from the tank 0 into the water-space between thetun A and vessel B.

To prevent all danger from any increase of pressure in the inside of thetun A during the operation, a pipe, R, is attached to the bottom of thetank 0, passing into a close vessel, S. On the top of this vessel S apipe, 1;, is arranged, extending into the same nearly to its bottom.This vessel S is filled with water, forming thus a water-joint or watersafety-valve.

At the upper end of the vesselB an overflowpipe, J is arranged, and nearthe bottom a cook, 20, to draw off the water when required, as well asthe usual suitable hand-holes for cleaning the interior of the vessel B.

The boiled wort runs from the brew-boiler, through the pipe F, into thetun A, wherethe strainer E retains the hops, malt, and other parts, andthe beer is carried away through the pipe G. The steam and vapors of thewort in the tun A are condensed again, the sides of the said tun and thebottom of the tank 0 forming the cover of said tun A. To lower thetemperature of the water supplied to the tankOand then made to surroundthe tun A, ice may be placed into the tank 0. By this arrangement theescape of steam and vapors from the tun A while the process of filteringthe wort is progressing will oo-prevented.

Instead of arranging the strainerE near the bottom of the tun, Iarrangeavessel,l),fittin g close into the insideof the tun andsupporting the same by suitable legs or projections at the properdistance from the bottom of the tun, and perforate its bottom to formthe strainer E. By this arrangement the hops, malt, &c., retained abovethe strainer E will be collected in said vessel D, and are then easilyremoved out of the tun A by the lifting out of this vessel D.

To alter any existing tun and arrange my improved cooling-cover to thesame, a water trough or channel, B, (see Fig. II,) can be arrangedin theupper part of said tun, upon which the cover 0, constructed and arrangedas above described, is supported, with its lower projecting part, d,entering the water supplied to said trough or channel, to make thiscover vapor-tight, as above set forth.

IOO

Near the top of the tun A a pipe, M, provided with a stop-cock, isarranged for the purpose of injecting water into the tun Ato assistcondensing the steam or vapors during the operation, if desired.

The above-described construction of my im-- proved hop-back not onlycondenses the steam and vapors in the vessel and retains the flavor oraroma in the beer, but at the same time lowers considerably thetemperature of the beer during this process of filtering the same or ofseparating the beer from the hops, malt, &c., and thereby facilitatesand expedites the after process of cooling the beer in the mannergenerally adopted.

What I claim as my invention, and desire to secure by Letters Patent,is-

In a h0p-bacl the tun A,provided with o'uttun A and vessel B, and thepipes R a and vessel S, aetin g as a water safety-valve to preventdanger of any increase of pressure in said tun, substantially as setforth.

JEAK SOHAFHAUS.

YVitnesses:

HENRY E. ROEDER, I. G. PENNYBRIGK.

